chore(deps-dev): bump jsii-diff from 1.103.0 to 1.103.1 (#1678)

Bumps [jsii-diff](https://github.com/aws/jsii/tree/HEAD/packages/jsii-diff) from 1.103.0 to 1.103.1.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a href="https://github.com/aws/jsii/releases">jsii-diff's releases</a>.</em></p>
<blockquote>
<h2>v1.103.1</h2>
<h3>Bug Fixes</h3>
<ul>
<li><strong>python:</strong> user defined <code>__jsii_proxy_class</code> attributes are not preserved  (<a href="https://redirect.github.com/aws/jsii/issues/4625">#4625</a>) (<a href="https://github.com/aws/jsii/commit/d3ec911a5d531e088524d2479e1ee831da0bc2ff">d3ec911</a>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a href="https://github.com/aws/jsii/blob/main/CHANGELOG.md">jsii-diff's changelog</a>.</em></p>
<blockquote>
<h2><a href="https://github.com/aws/jsii/compare/v1.103.0...v1.103.1">1.103.1</a> (2024-08-30)</h2>
<h3>Bug Fixes</h3>
<ul>
<li><strong>python:</strong> user defined <code>__jsii_proxy_class</code> attributes are not preserved  (<a href="https://redirect.github.com/aws/jsii/issues/4625">#4625</a>) (<a href="https://github.com/aws/jsii/commit/d3ec911a5d531e088524d2479e1ee831da0bc2ff">d3ec911</a>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li>See full diff in <a href="https://github.com/aws/jsii/commits/v1.103.1/packages/jsii-diff">compare view</a></li>
</ul>
</details>
<br />


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